Thursday, September 4, 2014

Potassium

Potassium is another metal that is found on the earth.
It is very soft, and can easily be cut with a knife.

If you put potassium in a glass of water, it will make a big explosion!

When the potassium is in the water, it mixes up with hydrogen and oxygen.
As it is mixing together, the chemicals let off a lot of heat.
With all that heat, some of the hydrogen gas lights on fire, and then it goes kaboom!

We have potassium in our bodies, but it's not the same as the potassium metal that explodes.
It's sort of like what's left from the mixed up potassium after the big explosion, so it's safe.
(from: wikipedia - potassium)